Frequently Asked Questions

What does it mean when the check engine light comes on in a 2015 Ram 3500?

• It signals that the vehicle's onboard diagnostics detected an emissions, engine, or drivetrain issue; codes range from minor sensor alerts to misfires that can damage the catalytic converter.
• At Larry H. Miller Chrysler Dodge Ram FIAT Denver we inspect the vehicle, read stored codes, and explain repair options clearly so you understand immediate and long‑term savings.
• We offer OEM parts, factory‑trained technicians, and warranty coverage; repairs covered under your warranty must be completed at a certified dealership to remain valid.
• We provide service financing so you can get necessary repairs now and pay over time; to book, please schedule service.
• Check current offers before you visit — see our service specials for discounts and loyalty program details.

How long does a check engine light service take?

• Typical diagnostics for a 2015 Ram 3500 take 30–90 minutes, depending on code complexity and necessary road testing to reproduce the fault.
• Simple fixes like sensor replacement or battery/battery cable checks can often be completed the same day; more involved repairs may require parts ordering or extended diagnostics.
• Our service lanes in Denver prioritize quick turnaround with transparent estimates and status updates so you know expected completion time and cost.
• We help maximize immediate and long‑term savings by diagnosing correctly the first time and using quality OEM parts to avoid repeat visits.
• Ready to get started? Please schedule service online or check current service specials.

How much does a check engine light diagnostic cost for a 2015 Ram 3500?

• Diagnostics are competitively priced at Larry H. Miller Chrysler Dodge Ram FIAT Denver; typical diagnostic fees start near local market rates and often cost less than independent shops once you factor in accurate repair, warranty protection, and parts longevity.
• Accurate diagnosis reduces long‑term expense by preventing unnecessary part swaps and protecting major components such as the catalytic converter and engine internals.
• If additional repairs are required, we provide clear written estimates and highlight available discounts and service financing so you can address issues now and pay later.
• For exact pricing and the latest service specials, contact our service team or schedule service online.

What is the most common reason for check engine light on a 2015 Ram 3500?

• Common causes include misfires, oxygen sensor or catalytic converter issues, EVAP leaks, and fuel‑trim or injector problems — each can affect performance and fuel economy.
• A small sensor fault left unresolved can lead to larger repairs; our certified technicians diagnose symptoms precisely to preserve vehicle life and reduce lifetime operating costs.
• We use factory diagnostic tools and OEM parts to restore performance and protect any remaining warranty coverage; remember warranty repairs must be performed at certified dealerships to remain valid.
• Ask about service financing and applicable service specials when you schedule service.

What is the first thing to check when the check engine light comes on?

• Start with a diagnostics scan — it reveals stored trouble codes and points to the subsystem involved (misfire, emissions, fuel, sensors).
• Battery health and charging should also be inspected, especially for a 2015 Ram 3500, because low voltage can trigger false codes or intermittent faults; we handle battery testing and replacement with OEM batteries sized to your truck.
• Our service advisors will explain whether a simple sensor replacement, a battery service, or a deeper engine repair is required and show how choosing dealership service often yields immediate and long‑term savings.
• To get precise results and protect your vehicle warranty, schedule service and view current service specials.